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The force-free dipole magnetosphere in nonlinear electrodynamics
Li HQ(李惠泉)1,2,3; Yang XL(杨晓林)1,2,3; Wang JC(王建成)1,2,3
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
2020-03-01
Volume20Issue:3Pages:6
DOI10.1088/1674-4527/20/3/38
Contribution Rank第1完成单位
Indexed BySCI
Keywordstars neutron stars magnetars stars magnetic field
Abstract

Quantum electrodynamics (QED) effects may be included in physical processes of magnetar and pulsar magnetospheres with strong magnetic fields. Involving the quantum corrections, Maxwell electrodynamics is modified to nonlinear electrodynamics. In this work, we study the force-free magnetosphere in nonlinear electrodynamics in a general framework. The pulsar equation describing a steady and axisymmetric magnetosphere is derived, which now admits solutions with corrections. We derive the first-order nonlinear corrections to the near-zone dipole magnetosphere in some popular nonlinear effective theories. The field lines of the corrected dipole tend to converge on the rotational axis so that the fields in the polar region are stronger compared to the pure dipole case.

Funding ProjectYunnan Natural Science Foundation[2017FB005] ; Yunnan Natural Science Foundation[2014FB188]
Funding OrganizationYunnan Natural Science FoundationYunnan Natural Science Foundation[2017FB005, 2014FB188]
Language英语
Subject Area天文学 ; 天体物理学 ; 高能天体物理学 ; 恒星与银河系
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherNATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES
Publication Place20A DATUN RD, CHAOYANG, BEIJING, 100012, PEOPLES R CHINA
ISSN1674-4527
URL查看原文
WOS IDWOS:000526406700001
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/23042
Collection高能天体物理研究组
中国科学院天体结构与演化重点实验室
Corresponding AuthorLi HQ(李惠泉)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650216, China
3.Center for AstronomicalMega-Science, Chinese Academy of Sciences, Beijing 100101, China
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li HQ,Yang XL,Wang JC. The force-free dipole magnetosphere in nonlinear electrodynamics[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2020,20(3):6.
APA Li HQ,Yang XL,&Wang JC.(2020).The force-free dipole magnetosphere in nonlinear electrodynamics.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,20(3),6.
MLA Li HQ,et al."The force-free dipole magnetosphere in nonlinear electrodynamics".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 20.3(2020):6.
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